问题
选择题
-I’d like to help the homeless people in the earthquake.
-You ________ join a volunteer group.
A.must
B.need
C.can
D.couldn’t
答案
答案:C
题目分析:句意:-我想去帮助地震中无家可归的人。-你可以加入志愿者团体。A must 必须B. need 需要在疑问句和否定句中做情态动词C. can能,会,可以D. couldn’t不能。根据句意故选C